42022004 has 24 divisors (see below), whose sum is σ = 75267360. Its totient is φ = 20520864.

The previous prime is 42021997. The next prime is 42022031. The reversal of 42022004 is 40022024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42022004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80087 + ... + 80609.

It is an arithmetic number, because the mean of its divisors is an integer number (3136140).

Almost surely, 2^42022004 is an apocalyptic number.

It is an amenable number.

42022004 is a deficient number, since it is larger than the sum of its proper divisors (33245356).

42022004 is a wasteful number, since it uses less digits than its factorization.

42022004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 42022004 is about 6482.4381215712. The cubic root of 42022004 is about 347.6633574545.

Adding to 42022004 its reverse (40022024), we get a palindrome (82044028).

The spelling of 42022004 in words is "forty-two million, twenty-two thousand, four".